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An Application of X-Ray Fluorescent Spectrography to Columbium Alloy Melting Practices*

Published online by Cambridge University Press:  06 March 2019

D. Moroz ,
D. E. Fornwalt ,
S. Aconsky ,
J. Doyle  and
W. R. Clough
D. Moroz
Affiliation:
Pratt and Whitney Aircraft, Middletown, Connecticut
D. E. Fornwalt
Affiliation:
Pratt and Whitney Aircraft, Middletown, Connecticut
S. Aconsky
Affiliation:
Pratt and Whitney Aircraft, Middletown, Connecticut
J. Doyle
Affiliation:
Pratt and Whitney Aircraft, Middletown, Connecticut
W. R. Clough
Affiliation:
Pratt and Whitney Aircraft, Middletown, Connecticut
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Abstract

Techniques were developed and statistically evaluated for the determination of both the homogeneity and the elemental compositions of columbium alloy ingots. X-ray fluorescent spectrography and automatic data handling systems are utilized. Sample preparation is discussed in detail from the consumable-electrode arc-melt process to the final physical form suitable for X-ray fluorescent spectrography. Arrangements of apparatus for obtaining, recording, processing, and interpreting data, with specific attention to limitations for various matrices, are treated at length.

The method has been applied to specific cases with, for example, a correlation of the degree of variation of homogeneity of columbium alloy ingots with remelting practice. An attempt is made to provide a preliminary basis for determining the value of the technique as a possible means of quality control.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 4: Ninth Annual Conference on Applications of X-ray Analysis, August 10-12, 1960 , 1960 , pp. 495 - 512
Copyright
Copyright © International Centre for Diffraction Data 1960

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Footnotes

*

This work was performed under AEC Contract No. AT(U-I)-229.

References

1. Dixon, W. J. and Massey, F. J., “Introduction to Statistical Analysis,“ McGraw-Hill, New York, 1951, pp. 110–111.Google Scholar